Latch



Feb. 25, 1930. w. D. FERRls 1,748,707

LATCH Filed Nov. 5, 1927 llllllllllll/llllllll A- 12 @www WMM PTJ/'5 Patented Feb. 1930 I WILLIAM 'n.rnRnrs. or`A srERLI'NdILLINoIs; .'Ass'IGNOR To FRANTZMANUFAOTUR- -Y ,l ING oo., or STERLING.' ILLINOIS, A ooRroRnrIoN on :ILLINOIS LATCH Application mea vNavember 5, 1927.*- ser-iai No. 231,225.v i

f Thisinvention relates todoor or window latches of the kindpin which a pivoted latch lne'mber is employed, on thedoor or win-dow, for engaging the stationary strike piece, and

f in which 4a rotary knob, on the door or window, is operative-to move the latch member ,about its pivot and out of engagement with the strike piece, when it is desired tov open the door or-windo'w.r l a Y f Generally stated`,theobject of the invention is to provide a novel construction and arrangementy whereby the said knob and latch member are'cornbinedin a structural unit which can beinsertedin and fastened tothe door or window as annit, with'the latch/member in position to operatively engage the said strike f piece whenthe door or window `is closed, thus automatically latching the door 0r window in closed positionyand in which the knobA andthe Vmeans forac'tuati'ng the latch member are disposed in a plane entirelyl outside ofthe plane of. the, ydoor or window, and *inV which the said latch memberis pivoted on a support forme'droIn-a sheet- 2inetalblank bentv into sha-pe, to engage the inner side of the cup-.shaped or hollow rose in which the knob .is;.swiveled, said support. and rose being ypermanently secured together.

It is also an Object to provide certain de-` tails and features of construction "and Com` l yfbinations 1,tending to increase'the general efticiencyfand.the desirabilityof 'a rotary knob l.

mechanism v of thisy particular p ivoted lla-tch i .35 Y yToV the foregoing and other usei'ulvends',V

the invention consistsV inthe matters hereinafterset forth and claimed, .and shownin the l .46 oted latch mechanism'embodying the principles of the invention,v showing the door and a portion of the .kitchen cupboardinhorizonv tal section.

, Fig. 2 is an enlarge-d vertical section Online` '45'2-2inrig-1. n

' Fig. 3 is a horizontal section on line S-Sin. l

' may beprovided with'a metal disk QOhaving Fig. 2.

Fig. 4 is a vertical,` transverse section on Y, ,11... line 4 4 in Fig. 3. 59 As thus illustrated, the invention comprises a cup-shapedor hollow sheetfmetalrose 1v,

'- which is applied to the outer side of thedoor 2, Vor to a window, and in which the swivel portion 3 of the knob'4 is kmounted tooscil-v late, so that the knob can be partially rotated in either direction. A sheet-metal support 5, approximating a barrel for the latch mechanism, is formed from a sheet-metal blank bent 'l into shape to provide parallel walls 6, and to as shown. The latch-member 9 is .disposed between the two parallel wall portions 6 .of the support or'-barrel 5, and -is pivoted in position a by ya pin 10 inserted through the walls V6, .as

shown. The swivel portion 3 of the knob yhas a cam 11 fixed thereon and providedwith Vengaging portions 12, as shown. The adjacent end of the latch member 9 is provided with a cross piece 13 fixed thereon having port-ions 14 for engaging theearn portions 12 previously mentioned. Alcoiled spring'l isdisposed.

provide arms 7 which latter are permanently( o y l secured to the rose 1 by the hollow rivets .8,

provided with an opening 18 to receive the inose 19 O the latchrnember 9,when the door Y 2 is -`closed,v 'in a manner understood. f ,v i Rotation ofthe knobv 4in.eitherdirection that will be readily 8U wills-it will befseen, cause onefor the other e ofxthe portions v1.2 to vco-operatel with one or ythe other of the portions y14 to Inovevor swing the "latchmember 9 out ofengagement with the strike piece. -The motion ofthe latch memberand `the. rotationof. theV knob fare limited bya stop 23 on ,thesupport or barrel of the'mechanisrn. f .TheA mechanismlis.heldy 50 in. place ,by screws;(`not shown) inserted through the hollow rivets v8 into the door .2, `I in a manner that will befreadilyunderstood,

-V lwhereby thefknob and YYlat'cl'i vmember 19 lare incorpora-ted in a structural .l unit whichis 'attachable .and detachableto,andfrom the dooras a unit. Thevjin'nerj side ofthefdoor g slotj21 or'thelatch member '9, the Slot forming aguide said latch inember.- rrThus piece 13 are not in the plane of the door, but are outside of the door and in the plane of the hollow rose 1` as shown and described.' Thus the barrel 5 does notl need to t the hole 22 in the door, being supported entirely by the rose l, so that this entire latch unit is supportedby the door or window through the medium of the rose, the barrel having no direct support on the door or window, but being only indirectly supported thereon through the medium of the said hollow rose, which latter is in the form of a shallow, sheetmetal cup removably fastened with its edges This obviates the necessity of boring or cutting a hole which will fit the barrel or latch support. Y

`Without disclaiming anything, and without prejudice to any novelty disclosed, what l claim as my invention is:

l. A, rotary knob pivoted latch mechanism comprising a rose, a knob swiveled in said rose, a cam on the swivel of said knob, inside the rose, a support approximating a barrel for the rose, rigidly secured thereto, a pivoted latch member in Asaid barrel, means on said latch member for engaging said cam, whereby said member is movable into unlat-ching position by rotation of the knob in either direction, said cam and 'engaging means beingV in the planeof the rose, andA means for detachably securing'the rose to the face of a door or window, together with a stationary strike piece for engaging the latch member, and a spring for said latch member, said. spring causing said latch member to return theknob to normal position, after the knob is rotated one way or the other, said barrel being formed from sheet metal bent into shape to provide parallel portions between which the latch member is pivoted, and to provide arms through the medium of which the barrel is'fastened to the rose.

v2. A structure as specified in claim 1, said arms being radial and disposed in the plane of said cam and being permanently fastened to the back of said rose by hollow rivets, with means for spacing said rivets from said door. 3. A structure as specified in claim l, said barrel having a bent portion forming a stop for said latch member, thereby limiting the rotation of said knob, and Said spring being a coil spring disposed behind said stop.

4e-A, structure as specified in claim l, said barrel being liattened in the plane of the latch member, and said arms extending at right angles to said plane.

can be inserted to detachably secure the rose to a door or window, said barrel having radial arms extending in the plane of said cam, through which arms said rivets are inserted.

6. In latch mechanism, the combination of a rose, a barrel, hollow rivets permanently securing the rose and barrel together, a rotary knob swiveled in said rose, a latch member pivoted in said barrel, Ya cam on the swivel of said knob, and means on said latch member to engage said cam, said hollow rivets providing openings through which screws can be inserted to detachably secure the rose to a door or window, said rose being cupshaped and provided with an annular inner edge extending a distance beyond the inner ends of said rivets, saidedge engaging the door, thus spacing said rivets a distance from the face of the door or window.

`7. In latch mechanism, a cup-shaped rose formed from sheet metal, a barrel formed from sheet metalbent into shape to engage the inside surface of the J rose, means permanently securing the rose andV barrel together, and rotary knob pivoted latch mechanism operatively supported, by said rose and barrel, forming a structural unit for attachment to the door or window.

8. In latch mechanism, the combination of an outer casing section, an inner casing section, means to permanently secure 'the two sections together, precluding separation of the sections, before the mechanism is fastened to the door, a knob swiveledin said outer section, a latch pivoted on said inner section, and a cam rigid with the inner end ofthe swiveled portion of said knob, said latch member having means for engaging said cam, the axis of the knob and the axis of the latch member being at right angles to eachother.

9. In latch mechanism, the combination of an outer cup-shaped casing section, an innerY sheet-metal casing section provided with projecting feet, Vmeans for securing said feet to the inner surface of the outer section, said inner section having flat parallel walls spaced a distance apart, a latch member pivoted between said flat walls, a spring for normally and yieldingly holding said latch member inoperative position, a knob swiveled in the outer section, and a ca m rigid with the inner end of'said knob, said latchl member having means for engaging said cam.

Specification signed Athis lst day of November,1927;` y f y A l r lVVILLAll/I FER-RIS.

i 5.7111 latch mechanism, the combination of p 

